Personally, I think C-System 3.5 better than Ulti Max, because has greater back-end and hits harder (More Pin action) I could be wrong. From the video, it seemed like Ulti Max is Hyper Version between Aphal Max with C-System 4.5 mixture! However, I will give ulti max a try sometime in future. Currently I have C-System 3.5/4.5 I love them~!
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